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A man can see the objects upto a distanc...

A man can see the objects upto a distance of one metre from his eyes. For correcting his eye sight so that he can see an object at infinity, he requires a lens whose power is

A

`+0.5D`

B

`+1.0`

C

`+2.0`

D

`-1.0D`

Text Solution

Verified by Experts

The correct Answer is:
4
f=-(defected far point )=-100cm.So power of the lens `P=100/f=100/(-100)=-1D`
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